I need verify 3/4 14 NPSF hole and I don´t know, what is the better for use it, if L1 and L3 gage or pith diameter go/nogo gage or please let me know what part of the thread verify with L1 and L3 Gage.Thanks
I have a hole with 3/4 14 npsf thread and verify with L1 and L3 gage, when I veryfied with L1 gage is ok, and when it veryfied with L3, pass through all the hole, what you think is the problem, conicity, big diameter before threaded